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bearhunter [10]
3 years ago
8

Janelle has 342 pennies, 62 nickels, and 12 dimes. If Janelle exchanges her coims for dollars, how many dollars will she have? H

ow many cents will remain
Mathematics
2 answers:
daser333 [38]3 years ago
8 0
U should know 100 pennies make =1 $
50 nickels=1$
10 dimes=1$
make an equation 
now i guess rest u can solve it
djyliett [7]3 years ago
3 0
Janelle pennies are worth $3.42 Hope this helps
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What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?
Zarrin [17]

The area of a circle is represented by the equation:


A=\pi r^{2}


We know that the diameter is two times the radius: d=2r


So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:


24m=2r -->r=12m


So then we can plug this radius in to the equation for the area of a circle:


A=\pi (12)^{2}


A=144\pi


We are told to use 3.14 as pi, and not pi itself, so let's plug in 3.14 for pi:


A=3.14(144)


A=452.16m^{2}


Now we know that the area of this circle is 452.16 square meters.

5 0
3 years ago
Kelly has a rectangular fish aquarium that measures 18 inches long, 8 inches wide, and 12 inches tall.
BigorU [14]

Answer:

a) The maximum amount of water the aquarium can hold is 1728 in³.

b) The cover has to be 624 in² big.

Step-by-step explanation:

a) The maximum volume of water that the aquarium can have is the same as the volume of the aquarium:

V=L×W×H=18 in × 8 in × 12 in= 1728 in³

b) The protective covering is used on the four walls of the aquarium. We have to find the areas of the four walls:

One of them is given by the multiplication of the width and the height:

A₁= W×H= 8 in × 12 in=96 in²

The other area is given by the multiplication of the length and the height:

A₂= L×H= 18 in × 12 in= 216 in²

As the fish aquarium is rectangular the area of the walls is given by:

A_T=2A_1+2A_2=2×96 in²+2×216 in²=624 in²

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3 years ago
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klasskru [66]
The answer to this question is b
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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

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3 years ago
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Domain: ( − ∞ , ∞ ) , { x | x ∈ R }

Range: ( − ∞ , 16 ] , { y | y ≤ 16 }

3 0
2 years ago
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